package com.mck.entity;

import lombok.Data;
import lombok.Builder;
import lombok.AllArgsConstructor;
import lombok.NoArgsConstructor;
import java.time.LocalDateTime;

@Data
@Builder
@AllArgsConstructor
@NoArgsConstructor
public class ChatMessage {
  private String userId;
  private String role; // "user" 或 "assistant"
  private String content;
  private LocalDateTime timestamp;
}